Bummer about your heart acting up. I get a-fib attacks now and then (happened at Waikiki). It always seems to last under 3 minutes then good to go full speed afterwards. Seems triggered when hr goes over 150, but not always. I mean rarely ever when under 150, but every time it happens, my hr just prior is over 150. I've had it go over 170 with no attack, so... who knows. I'm correlating with other factors and it seems hydration may be one, but drinking a lot, like big gulps during a race seems to trigger it. So I try to stay well hydrated with small sips often.
Wish I could have caught up with you two.
There's a Nadadores sponsored 1 mile swim in Lake Mission Viejo coming up. I'm not doing it as I'm on a team for the La Jolla 10 mile relay this coming weekend. We're a team of 5, with Heidi and I likely the quickest. Look for team, "Nacho Libre"
Proud member of FISHTWITCH: doing a bit more than fish exercise now.